/* ==========================================================================
   Labs Portal Styling & Cyber Architecture
   Extends root design tokens from ../style.css
   ========================================================================== */

:root {
  --labs-max-width: 1120px;
}

/* Base Viewport & Wrapper */
.labs-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--labs-max-width);
  margin: 0 auto;
}

.labs-container {
  background: var(--bg-surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 3.5vw, 40px);
  box-shadow: 
    0 25px 60px -15px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: clamp(20px, 3vh, 32px);
}

/* ==========================================================================
   Header Navigation Bar
   ========================================================================== */

.labs-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 12px;
}

.nav-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.nav-back-btn .btn-icon {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-back-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-cyan-glow);
  transform: translateX(-2px);
}

.nav-back-btn:hover .btn-icon {
  transform: translateX(-3px);
}

.badge-counter {
  color: var(--accent-cyan);
  border-color: rgba(56, 189, 248, 0.35);
  background: rgba(56, 189, 248, 0.08);
}

/* ==========================================================================
   Labs Hero Section
   ========================================================================== */

.labs-hero {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.terminal-symbol {
  color: var(--accent-emerald);
  font-weight: 700;
}

.labs-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.labs-subtitle {
  font-size: clamp(0.92rem, 1.3vw, 1.05rem);
  color: var(--text-secondary);
  max-width: 820px;
  line-height: 1.6;
}

/* ==========================================================================
   Filter Toolbar
   ========================================================================== */

.filter-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.filter-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.filter-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: rgba(148, 163, 184, 0.35);
  background: rgba(255, 255, 255, 0.04);
}

.filter-btn.active {
  background: rgba(56, 189, 248, 0.14);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan-glow);
}

.filter-btn.active .filter-dot {
  background: var(--accent-cyan);
  box-shadow: 0 0 6px var(--accent-cyan);
}

/* ==========================================================================
   Labs Grid & Experiment Cards
   ========================================================================== */

.labs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.lab-card {
  position: relative;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.lab-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.6), 0 0 20px rgba(56, 189, 248, 0.12);
}

.card-glow-accent {
  position: absolute;
  top: -50px;
  right: -50px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-cyan-glow) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.lab-card:hover .card-glow-accent {
  opacity: 0.7;
}

.card-glow-accent.glow-emerald {
  background: radial-gradient(circle, var(--accent-emerald-glow) 0%, transparent 70%);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lab-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.badge-live {
  background: rgba(16, 185, 129, 0.14);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.pulse-ring {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-emerald);
  box-shadow: 0 0 6px var(--accent-emerald);
  animation: pulse-led 1.8s infinite ease-in-out;
}

.badge-pipeline {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-amber);
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.pulse-amber {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-amber);
  box-shadow: 0 0 6px var(--accent-amber);
}

.lab-id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.lab-card-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
}

.lab-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Card Footer & Action Buttons */
.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid rgba(148, 163, 184, 0.08);
}

.lab-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
  font-family: var(--font-sans);
}

.action-primary-launch {
  background: var(--accent-cyan);
  color: #070a13;
  box-shadow: 0 4px 12px -2px var(--accent-cyan-glow);
}

.action-primary-launch:hover {
  background: #7dd3fc;
  box-shadow: 0 6px 18px -2px rgba(56, 189, 248, 0.5);
  transform: translateY(-1px);
}

.action-ghost {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
}

.action-ghost:hover {
  color: var(--text-primary);
  border-color: rgba(148, 163, 184, 0.35);
  background: var(--bg-surface-hover);
}

.sandbox-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* Hidden state for filter */
.lab-card.is-hidden {
  display: none !important;
}

/* ==========================================================================
   Labs Footer
   ========================================================================== */

.labs-footer {
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.footer-author-link {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.footer-author-link:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */

@media (max-width: 768px) {
  .labs-header-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-left, .header-center, .header-right {
    width: 100%;
    display: flex;
    justify-content: space-between;
  }

  .labs-grid {
    grid-template-columns: 1fr;
  }

  .card-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .lab-action-btn {
    width: 100%;
    justify-content: center;
  }
}